Controlling mechanism.



A. R. MURRAY.

CONTROLLING MEGHANISM.

APPLICATION FILED JAN.19, 1914i 1,1 14,793. Patented 0011.27, 1914 4SHEETSSH'EET l.

VHF NORRIS PETERS CO.. F'HOTOLITH 7,,WASHING1ON, D. c.

Patented Oct. 27, 1914.

4 SHEETSSHBET 2.

A. E. MURRAY.

GONTROLLING MECHANISM.

APPLIGATION FILED JAN.-19, 1914.

THE NORRIS PETERS c0. PHOTD-LITHLL, WASHING TON, Dv C,

A. R. MURRAY.

CONTROLLING MECHANISM.

APPLIGA'IION FILED JAN.19, 1914.

1,1 14,793. Patented 001;. 27, 1914.

4 SHEETS-SHEET 3.

r ai

Fill.

gmmm W THE NORRIS PETERS C0 PHOTO-LITHO.. WASHINGTON, r). C.

A. R. MURRAY.

CONTROLLING MECHANISM.

APPLICATION FILED 16.11219, 1.914.

1,1 14,793, Patented 0015.27, 1914.

4 SHEETSSHEET 4.

@FMw

7H!" NORRIS PETERS cow. FHGTO-LlTl-l WASHINGTON, n. c.

UNITED srarns PATENT OFFICE.

ARISTIDES R. MURRAY, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATICUTTING MACHINE COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

CONTROLLING IMECHANISM.

Specification of Letters Patent.

Patented Oct. 27,1914.

Application filed January 19', 19141. Serial n5. 812,988.

To all whom it may concern Be it known that LAnrsrmns R. hLlURRAY, acitizen of the United States, residing at Cincinnati, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in Controlling ,Mechanism, of which the following is aspecification. I

My invention is especially applicable in machines of that character inwhich there is a cutter-support, a work-support,means for causingreciprocating movements between said supports in performing the cutting,and indexing means for intermittently presenting new surfaces of thework to the cutter.

It is the object of my invention to provide novel controlling mechanism,whereby for example the reciprocatiing movements between thecutter-support and the worksupport are automatically discontinued uponthe completion of the work, irrespec tive of whether one or more feedingrevolutions between the work and cutter are necessary for the completionof the work, or

of the extent of the movements required lee-- tween the work and thecutter for presenting new surfaces to be cut.

I exemplify my invention in a so-called gancutting machine. I illustratethe prin cipal parts of a machine of this nature, and exemplify thecontrolling means as acting upon an element of the means forreciproeating the cutter-support, and as actuated by said element, but Ido not intend that my invention be limited by such exemplifi cationexcept as the scope of the claims necessitates. I

It is the object of my invention further to provide novel means, in agear-cutting machine, for example, whereby the reciproeating movementsbetween the cutter and the gear-blank are controlled, so that the sameare arrested when a given number of reciprocations have taken place,thus permitting a given number of teeth to be cut irrespective ofwhether the teeth are cut one adjacent to the other, in which instancethe cutting of the teeth will have been per-,

formed atone complete revolution of the gear-blank, or whether theblocksystem of cutting teeth is'employed, in which the cutter cutsnon-adjacent toothspaces, one or more of the tooth-spaces being skippedat each actuation of the gear-blank, and more teeth about thegear-blank.

It is theobject of my invention further to provide a controlling'nieans'of the char acter .nientioned in which there is a controllingmember and a controlled member ;whichhave relative rotary and axialmove- .ments between them for determining their amoment of coaction;further to provide controlling means of the character mentioned in whichthere is a controlling member and n controlled member which have rotaryimovement imparted between them for a given range of numbersflofreciprocations. Qcontrolled and have axial movement 'im-- parted betweenthem for controlling multiples of said givenrange.

It is a further ob cCt of my invention to provide controlling means ofcompact form capable of being readily attached t'o a machine of thecharacter mentioned" for controlling the,reciprocationsbetween thecutter-support andthe work-support. The invention will be furtherreadily un-' derstood from the following description and claims, andfrom the drawings, in which latter: I a 1v v a Figure 1 is a plan viewof a gear-cutting machine embodying my invention. Fig. is a rear sideelevation of the same. Fig. is a front end elevation of the same. Fig.is a rear end elevation of the same. Fig.

isa vertical cross-section taken onthe irregular: line 5-5 of Fig; 1,showing the clutch-operating mechanism for controlling the carriage.movement. Fig. 6 is a side elevation of the controlling mechanism,showing the same mounted on the machine frame, the actuating memberbeing shown in normal position in full lines, and in as sumed positionin dotted lines, the controllingmechanism being shown partly in sectionon the irregular line 66 of Fig. 9. F 7 is a rear side elevation of thesame, the casing being shown partly in vertical section on theirregularline 77 of Fig. 9, and showing the arresting member in normalinoperative position in full lines, and in arresting positionin dottedlines. Fig. 8 is a plan view of the same, with the casing showniri'section on the line 8-8 of Fig. 6. Fig. 9 is aYplanview of the same.Fig. 10

is a vertical cross-section on the line 1010' of Fig.7 and Fig. 11 is a.detail'in vertical section taken on the line 1111 of Fig. 2,

showing tripping means for the indexing mechanism.

11 represents the main frame of a gearcutting machine, which supports acarriage 12,or cutter support, which reciprocates on guideways 13 on themain frame. A cutterarbor let is journaled in bearings 15 on anadjustable cross-slide 16 on the carriage, and is arranged to have asuitable cutter 17 secured thereto.

21 is a slide, which has a spindle 22 j ournaled thereon in a bearing23, the spindle being arranged to have a suitable blank, shown as agear-blank 24, releasably secured thereto. The slide 21 is slidablealong a guide 25 on a column 26 of the frame, and is adjustable up anddown by means of a screw-rod 27.

The cutter is caused to rotate and the cutter-support is caused toreciprocate under jacent or non-adjacent tooth-spaces.

A drive-shaft 31 is journaled in'bearings 32 in the main frame, and hasa bevelgear 33 and a spur-gear 3% fast thereon. A shaft 35 is journaledin a bearing 36 in the main frame, and has a bevel-gear 37 fast thereonwhich meshes with the bevel-gear 33. A shaft 38 for driving the cutteris journaled in bearings 39, 40, of the main frame, bearings 41 on thecutter-carriage being received about the shaft and having a worm 42between them, the worm having splineconnection 43 with said shaft forbeing rotated thereby irrespective of its lengthwise position on theshaft 38. A gear A4: is on the shaft 35 and a gear 45 is on the shaft38, and mesh with each other, these gears being capable of being changedfor varying the speed of the shaft 38. A worm-wheel 46 fast on thecutter-arbor 14 meshes with the worm 4-2 for being rotated thereby.

Suitable means are provided for auto matically intermittently rotatingthe spindle 22 with a step-by-step movement, the steps representing oneor more of the teeth to be cut on the gear-blank. I have instanced thismechanism as comprising a worm-wheel 51, which is suitably releasablysecured to the spindle 22. A worm 52 meshes with the worm-wheel. Thisworm has journals 53 in bearings 5 f on a bracket 55 extending from theslide 21. A shaft 56 has splineconnection 57 with the wormf It has abevel-gear 58 fast thereon, meshed by a bevel gear 59 fast on a shaft 60j ournaled in bearings 61 andodrivenfrom a shaft 62 journaled inbearings 63 in the main frame.

Suitable change-gear mechanism is located between the shafts 62 and 60,indicated generally at 64:, for the purpose of changing the relations ofspeed between the shafts 62 and 60, depending on the distance it isdesired to move the gear-blank at its respective steps of intermittentmovement.

Means are provided for intermittently rotating the shaft 62 from a shaft65, the shaft 65 being a continuously rotating shaft ar ranged to impartrotation to the shaft 62 when it is desired to have a movement of thegear-blank take place, the shaft 62 preferably rotating one revolutionat each such actuation. The shaft 65 is journaled in bearings 66 on theframe and has a gear 67 thereon which is meshed by a gear 68 fast on theshaft 35. The shaft 65 also has a gear 69 fast thereon which meshes witha gear 7 0 on one member of a suitable frictionclutch 71, the othermember 72 of said clutch being fast on the shaft 62. The shaft 62 isnormally arrested to prevent its rotation, and its arresting member isarranged to be rendered momentarily inoperative by a suitable carriagecontrol. This mechanism is instanced as a trigger 73 engaging a tooth 7i on a hub 75 fast on the shaft 62, the trigger being controlled by abell-crank lever 76 pivoted at 77 to the frame and connected with thetrigger by a link 78. The bellcrank lever is arranged to be engaged by afinger 79 secured to a shifter-rod 80, the finger being arranged to rideover a latch 81 on the bell-crank lever, depressing the same against theaction of a spring 82, the latch rising after passage of the triggerinto obstructing position so as to actuate the bellcrank lever uponreverse movement of said finger, for momentarily raising the trigger 73,but allowing its immediate retraction for riding on the hub 75 and intoobstructing relation with the tooth 7 a for permitting only onerevolution of the shaft 62 at a time.

The means exemplified for reciprocating the carriage include a gear 86journaled on a stud 87 and meshing with the gear 67. A gear 88 mesheswith the gear 86 and has a hub 89 journaled in a bearing 90 .in the mainframe, the inner end of the hub having one member of a clutch 91thereon. A screw-rod 92 is received in the hub 89, is j ournaled in abearing 93 in the main frame, and has threaded connection with thethreaded bearing 9 L of the cutter carriage. These means cause movementof the carriage in one direction, namely the reverse movement of thecarriage for returning the cutter-carriage to initial position ready fora new cut to be taken, and is the speedier of the two movements of thecarriage. For moving the cuttencarriage in the opposite or feeddirection for causing cutting travel between the carriage and thegear-blank, the gear 3% meshes with a gear 95 on a crossspectiveclutches 91 and 100 thereon. This collar has spline-connection102 withthe screw-rod and is arranged to beshifted by an operating lever 103.This operating lever is shownpivoted to the frame on a stud 104 and hasfingers 105 thereon received in an annular groove 106 in the coltheopposite clutch. initiated, the roller 112 will have arrived lar 101,and is provided with a handle 107 by means of which the same may beshifted by hand.

Means are provided for causing quick release and-engagement of theclutches when the machine is in operation. Thus 111 is a rocking memberpivoted on the stud 104 and has a roller 112 thereon. It is providedwith a lug 113 which is movable back and forth in a recess 114 in theclutch-lever, the end walls of the lug and recess being so arranged thatcontact therebetween will cause engagement between the clutches..-.

The rocking member is arranged to be rocked by means of a sleeve 115which has flanges 116 at its ends, the flanges being arranged to engagethe rocking member. Endwise movement of the sleeve is controlled by themovement of the carriage. It is mounted on the longitudinally movablerod slidable in bearings 117 in the main frame. It also has collars 119,119 thereon,

which are arranged to be adjusted to suitable positions lengthwise ofthe rod, de-

pending on the length of travel it is desired that the carriage shallhave. These collars are set lengthwise of the rod by bolts 120, 120. Astriker-pin 118 is arranged to be contacted by the collars 119, 119, forlongitudinally shifting the rod 80.

A. thrust-bolt 126 has oppositely inclined contact faces 127 thereonarrangedto contact the roller 112. The thrust-bolt is received in asocket 128 of the frame and is spring-pressed toward the roller by aspring 129. When the sleeve is moved longitudinally by the carriage, itfirst aifects'the' rocking member 111, permitting the clutch that hasbeen. in engagement to remain in engagement during the initial part ofits movement. lVhen the lug 113 strikes the end face of the recess 114,toward which it is moving, the further movement of the rocking memberwill cause a shifting of the operating lever for initiating movementtoward When its movement is It has one memberv at the apex between theinclinedlcontact' faces .127, the bolt having been meanwhile pressedlengthwise for compressing the spring 129, whichv willforce the boltoutwardly when the contacted part of the periphery of" the roller 112will have passed the said apex.

Means are provided for causing cessation of reciprocating movementsbetween the cutter-support and'the' worlnsupport upon,

completion of a given number of said recip rocations, and I. haveexemplified these means as readily. attachable. tothe machine as aself-containeddevice. Thus 151 is. a

casing secured to theYframe by means of. bolts152. 153 is a"rotarycontrolling element and is arranged to be intermittently rotatedby-suitable means, as. a-rotary actu-" ating element, exemplified as aratchetwheel 154. The rotary controlling element and rotary actuatingelement rotatesimultaneously. I have shown the rotary controllingelement in the form of a round block mounted on a sleeve .155 andsecured rigidly to said sleeve by a set-screw 156, the

sleeve in the present exemplificationforming the hub ofthe. ratchetwheel. Axial movement is also iinparted to the rotary controllingelement, exemplified as accomplished by a screw-rod. I have shown thescrew-rod rigid in the casing. This screw rod isexemplifiedat 157, fixedin a bearing,

.158 in the casing, and having threaded connection with the threadedbore 159 of sleeve An actuating lever 161 is pivoted on a shaft 162mounted in bearings 163 of the casing. A pawl 164 is pivoted by means ofa pivot-screw 165 to the arm 166 of the actuating lever, the tooth 167of the pawl coacting with the teeth 168 of the ratchetwheel. The weight"of the pawl normally causes engagement between its tooth and the teethof the ratchet-wheel. :The actuating lever is arranged to be actuated bya suit- 1 able part of the machine,"exemplified as the. clutch-operatinglever 103, the actuated .arm 169. of the actuating lever extendingoutside the casing through an opening 170 in the casing'into the normalrange of movement of the clutch-lever 103. This clutchlever reciprocatesas hereinbefore described, and when moving in one direction is arrangedto strike an inclined face 171 on said actuated arm for depressing saidactuated:

arm at each movement in one direction of said clutch-lever, therebyactuating the pawl 164 and causing amovement of theratchetwheel and ofthe rotary controlling element for the distance of one tooth of theratchet-wheel. The actuated arm is brought into normal range with theclutch-lever by. means of a push-pin 172 acting upon a lug 173 of theactuating lever and "springpressed by a spring 174 received about thestem 175 of said push-pin in asocket 176 of a socket-cap 177 releasablysecured to the casing, as shown by the threaded connection 178. Anextension 183 extends from said pawl through a slot 18 1 in thecasing toa position outside said casing, so that the pawl may be manually broughtout of coaotlng relation with the ratchet-wheel.

The element controlled by the rotary controlling element is exemplifiedas an arresting lever 186 arranged to arrest the reciprocating movementof the clutch-lever for preventing engagement of the clutch 100, andconsequently the movement of the cutter-support toward the work-support,this arresting being effected when the. proper number'of teeth have beencut in the gearblank. This arresting lever is pivoted on the shaft 162and has an arm 187 extending to the outside of the casing through theopening 170. The arm is provided with a hook 188 arranged to be placedinto obstructing position with relation to the clutch-lever 103 when thedesired number or" reciprocations between the cutter-support and thework-support have taken place.

The inner end of the lever 186 is provided with a finger 18.9. Therotary controlling element comprises apart arranged to coact with thefinger for bringing the hook 188 into arresting position. shownaccomplished by providing the rotary controlling element 153 with adepres-' SiOn 191 in which the finger is arranged to be received. Thefinger is normally pressed toward the rotary controlling element by apush-pin 192 acting on the finger'189 of the lever 186 andspring-pressed by a spring 19 1 received about the stem 195 of thepush-- pin in a socket 196 of a socket-cap 197 having threadedconnection 198 with the casing. The finger is provided with an extension199 received through a slot 200 to the outside of the casing ,for manualmanipulation of the finger. The extensions 183 and 199 are in adjacentpositions so that both said extensions can be simultaneously manuallymanipulated for bringing both the pawl 16 1 and the finger 189 intoinactive relation respectively with the ratchet-wheel and ro tarycontrolling-element,for instance when setting the parts.

The arms 169 and 187 are preferably located in adjacent relation forrespectively being acted upon by and acting upon the clutch-lever 103..A setscrew 201 is provided for adjustably positioning the actuatinglever 161 for causing proper engagement of the pawl 164 with the teethof the ratchetavheel, and a set-screw 202 is provided for causing properrelation of the finger 189 with the wall of the depression 191,

the set-screws also properly positioning the outer arms of the actuatinglever and the controlled lever. A gage is provided for This s isdetermining the number of actuations which the rotary controllingelement or the ratchetwheel is to receive for moving the depres.

sion 191 and finger 189 into coacting relation. This gage is instancedas comprising a gage-plate 205 which has bearing about the sleeve 155for permitting rotation of the gage-plate with relation to the rotarycontrolling element or ratchet-wheel, for positioning said gage-platewith relation thereto.

The ratchet-wheel is instanced as having an index 206 thereon, its indexbeing" an index of the number, and relation of the teeth of theratchet-wheel. Instancing the ratchet-wheel as comprising one hundredteeth in its circumference, the index will be with said bearing toprevent turning of the stop. The stop 209 is movable in a directionparallel to the axis of rotation of the ratchet-wheel, shown bypermitting the stem to slide longitudinally in the bearing,

and to be clamped in adjusted positions by means of a set-screw 214.

The depression 191 has an end wall 215 that is a wall extendingsubstantially parallelwith the axis of rotation of the rotarycontrolling element. This end wall is -ar ranged to coact with the innerend 216 of the finger 189 for permitting the finger to drop into thedepression, whereby the hook 188 is moved into range with theclutchlever. When the end wall 215 and inner end 216 of the finger arein such coacting relation, the zero mark on the index will register withthe register-face 21.0 of the stop 209. If it is desired to set the saidstop 207 for a given number of teeth to be out, the stop having beenunclamped from the ratchet-wheel, it is rotated about the ratchetwheeluntil its register-face 208 registers with the number on the indexcorresponding to the number of tooth-spaces to be cut, whereupon thegage-plate is clamped in such adjusted position by means of a clamp nut219 having threaded engagement 220 with the sleeve 155, whereby therotary controlling element, the ratchet-wheel and gageplate on which thestop 207 is located are united as a self-contained unit. This unit isnow manually turned until the registerface 208 on stop 207 contacts theregisterface 210 on stop 209. The parts are now ready to begin thecutting of the teeth. hen the given number of teeth has been cut,'theinner end 216. of the finger drops past the end wall 215 ofthe'depression for moving the hook 188 into range with the clutch-lever.The self-contained unit may be returned to initial position as manytimes as desired without readjustment of the parts for cutting new gearshaving the same number of teeth. Adjustment for a given range of unitsof adjustment, instanced as one hundred, is thus provided It frequentlyoccurs however that a range of adjustment is desirable which is greaterthan the number of teeth which can be provided on the periphery of aratchet-wheel without making the teeth too small or the wheel to largefor practical purposes; I therefore provide means for moving said rotarycontrolling element axially a given distance for each rotary movement ofthe same, which I ac complish by mounting the sleeve on the screw-rod157, instanced as rigidly secured in the casing. Each rotation of the rotary controlling element will therefore cause axial movement thereof agiven distance, each of said axial movements representing a multiple ofsaid original series of adjustment units. The depression 191 and thefinger 189 are out ofregistry with each other lengthwise of the axis ofrotation of the rotary controlling element during adjustment for suchhigher multiples of adjustment units. The width of the depression andthe width of the finger and their positions are preferably such that thefinger can be re-f ceived in the depression only when said zero mark hasreached said stop 209 during the lowest multiple ofadjustment unitsr Thedepression is provided with a side wall 226 and thefinger is providedwith a side face 227, this side wall and side face extending indirections crosswise of the axis of rotation of the rotary controllingelement,the side face 227 being permitted to pass across the side wall226 only when said depression has reached its zero limit of movement, in

the final series of units. of adjustment, the

finger otherwise riding upon the periphery of the rotary controllingelement 153.

. The rotary movement of the rotary controlling element for causingcoaction between the finger and depression for caus ing arrest of theclutch-lever takes place in the. direction indicated'by the arrow at inFig. 6. The axial movementof this element for causing said coactiontakes place in the direction indicated by the arrow 6 in Fig. 10. Therotary controlling element for each of its'revolutions representing oneof the series of units ofadjustment, is moved axially for the distanceof the lead of the screw-rod 15 7. The stem 211 is provided with a gage,229, each of the markings of which repre-- sents' the axial movement dueto one revolution' of 'the rotary controlling element.

Instanci ng the desired adjustment of th e controlling mechanism,- asherein exempli= iied, as two hundred and ninety teeth, the

clamp-nut219 is released for releasing the proximate end wall 230 of thebearing 212,

for the reason that the adjustment desired is in the third step ormultiple of the series of units of adjustment. The gage plate hav-- 111gbeen clamped in place by means of the clamp-nut 219, andthe stop 209having been clamped in position by means of the set screw 214:, thesleeve 155 is turned for retracting the rotarycontrolling elementrotatively and axially until the register-face 208 y contacts theregister-face 210, in which position the parts are in proper relationfor having the first tooth-space to be cut on the gearblank operatedupon. At thefcompletion of i each advancing movement'of thecutter-support, the clutch-lever 108 is tripped for moving the handleend 231 of said clutchlever toward the actuating lever 161 and causingactuation of the pawl for advancing the ratchet-wheel one tooth.completion of the cutting of' the two hundred and ninetieth tooth-space,whether one or more than one revolution of the gear blank has takenplace, the actuating lever will be again actuated for advancing theratchet-wheel for its two hundred and ninetieth time, whereupon the sidewall 226 will i have been brought into, coacting relation with theside-face 227 and the end wall 215 At the will have been brought into,coacting relation with the inner end 216, so.that the finger 189 will bereceived in the depression 191, and q the controlled or arresting lever186 will be swung on its pivot by means of the spring 194. for bringingthe 110011188 intorange with the clutch-lever I 108, soqthat, when thetool-support is-returned to its limit of retracting inovement for againinitiating a reverseswinging of the clutch-lever, the hook 188 willarrest the swinging of the clutch-lever when the 7 clutch-sleeve 101 isin neutral position, so that both the-clutches 91 and are out ofoperative relation for automatically stop ping the feeding of; thecutter-support.

A brake-plug232 is urged against the rotary controlling element by aspring 283 r for preventing overthrow of the. ratchetwheelupon actuationthereof by the pa'wl,

The spring is shown received-about the stem" 234 of the-brake-plug inthesocket of a socket-piece 235 having threaded connec-. tion 236 with thecasing.

Having thus fully described" my invention, what Iclaim' as new anddesire to j secure by Letters Patent,is v "1.; In mechanism 1 of thecharacter gnieli tioned, the combination of a controlled memf ber,a'controlling member therefor, said controlled member and-controllingmember having coacting parts between them, means for axially androtatively adjusting the operative relations between said coactingparts, and meanscausingintermittent axial and rotative movements betweensaid coacting parts for causing coacting relation between said coactingparts. j

2. In mechanism of the character mentioned, the combination of acontrolled member, a controlling member therefor, said controlled memberand controlling member having coacting parts between them, and means foradjusting the relation axially and the angular distance between saidcoacting parts.

3. In mechanism of the character mentioned, the combination of acontrolled member, a controlling member therefor, said controlled memberand controlling member having coacting parts between them, means foradjusting the relation axially andthe angular distance between saidcoacting parts, and a brake acting on said controlling member.

L In mechanism of the character mentioned,-the combination of acontrolled member, a controlling member therefor, said controlled memberand controlling member having coactin parts between them,- means foradjusting the angular distance between said coacting parts for givenunits of adjustment and for adjusting the distance axially between saidcoacting parts for multiples of said given units of adjustment, andmeans for causing intermittent rotative' and axial movements betweensaid coacting parts.

5. In mechanism of the character mentioned, the combination of acontrolled member, a rotary controlling element therefor, a rotaryactuating element for said rotary controlling element, a rotarygage-member for the latter, means for adjustably positioning saidgage-member with relationto said actuating element, and actuating meansfor said actuating element.

6. In mechanism of the character mentioned, the combination of acontrolled member, a rotary controlling element therefor, a rotaryactuating element for said rotary controlling element, means for axialadjustv ment between said rotary controlling element and saidc'ontrolled member, a rotary gage-member for said'rota-ry actuatingelement, means for adjustably positioning said gage member with relationto said actuating element, and means for causing intermittent rotary andaxial movements between said rotary controlling element and saidcontrolled member.

7 In mechanism of the character mentioned, the combination of acontrolled mem-- ber, a rotary controlling element therefor providedwith a depression having awall extendinglengthwise of the axis of saidrotary controlling element and a wall extending crosswise of said axis,said walls coact' ing with said controlled member, a rotary actuatingelement for said rotary controlling element, said elements connected forcombined movements, and a screw-rod with which said elements haveoperative connection for causing rotative-movement of said firstnamedwall and axial movement of said second-named wall into coaction withsaid controlled element.

8. In mechanism of the character .mentioned, the combination of acontrolled member, a rotary controlling element therefor, a rotaryactuating element for said rotary controlling element, a rotarygage-member arranged to be rotatively adjustably positioned about theaxis of said rotary actuating element, said rotary controlling element,rotary actuating element and rotary gage-member connected as a unit forcombined movement, and a screw-rod with which said unit has connection,for the purpose described.

9. In mechanism of the character mentioned, the combination of acontrolled member, a rotary controlling element therefor provided with adepression with which said controlled member coacts, a rotary actuatingelement for said rotary controlling element, a rotarygage-memberarranged to be rotatively adjustably positioned about theaxis of said rotary actuating element, said rotary controlling element,rotary actuating element and rotary age-member connected as a unit forcombined movement, and means for actuating said rotary actuating elementfor moving said depression into eoacting re- ;lation with saidcontrolled member.

10. In mechanism of the character mentioned, the combination ofcontrolled member, a rotary controlling elem nt therefor provided with adepression with which said controlled member coacts, a rotary actuat ingelement for said rotary controlling elemeet, a r tary gagememberarranged to be rotatatively adjustably positioned about the axis ofsaidrotary actuating element, said rotary cont-rolling element, rotaryactuating element and rotary gage member connected as a unit forcombined movement, means for actuating said rotary actuating element formoving said 'depresslon into coacting relation" with said controlledmember, and a brake acting" on said unit.

11. In mechanismof the character mentioned, the combination of acontrolled member, a rotary controlling element provided with a coactingpart for said controlled member, a rotary gage-member for said controlled member provided with a stop arranged to be rotatively adjustablypositioned with relation to said coactingv part, and a 'coacting' stopfor said last-named stop whereby the range of rotary movement of saidrotary controlling element is determined.

12. In mechanism of the character men tioned, the combination of acontrolled member, a rotary controlling element provided with a coactingpart for saidcontrolled member provided with a wall extending lengthwiseof the axis of rotation of said rotary controlling element, and a wallextending crosswise of said axis, means for imparting rotary and axialmovements to said controlling element, a stop arranged to be rotativelypositioned with relation to said coacting part and axially positionedwith said coacting part, and a coacting stop for said first named stoparranged to be passed in the rotary movement of said first-named stop inselective rotations of said first-named stop and whereby the range ofcombined ro tary and axial movement of said rotary con trolling elementis determined.

13. In mechanism of the character mentioned, the combination with areciprocating member, of an arresting member therefor, a rotarycontrolling element provided with a depression for said arrestingmember, a ratchet-wheel having operative connection with said rotarycontrolling element, a lever actuated by said reciprocating member, anda pawl for said ratchet-wheel actuatedjby said lever, and constructedand arranged for moving said depression into coacting relation with saidarresting member. i

14. In mechanism of the character mentioned, the combination with areciprocating member, of an arresting member therefor, a rotarycontrolling element provided with a depression for said arrestingmember, a screw-rod for said rotary controlling element, a ratchet-wheelhaving operative connection with said rotary controlling element, alever actuated by said reciprocating memher, and a pawl for saidratchet-wheel actuated by said lever for moving said depressionrotatively and axially into coacting relation with said arrestingmember.

15. In mechanism of the character mentioned, the combination with areciprocating member, of a rotary controlling element and aratchet-wheel having operative connection with each other, a pawl forsaid ratchetwheel, and adjacent levers, one of which is an arrestinglever for said reciprocating member and the other of which is anactuating lever for said pawl normally in the range of movement of saidreciprocating member and actuated thereby, and said rotary controllingelement provided with a coacting part for said arresting lever broughtinto coacting relation with said arresting lever by the actuationsimparted to said ratchet-wheel by said actuating lever and pawl;

16. In mechanism of the character mentioned, the combination, with acasing,..of

a rotary controlling element anda rotary actuating element havingoperative connection with each other located inside said casing, and anarresting lever and an actuating lever pivoted to said casing and havingarms extending outside said casing,- said actuating lever havingoperative connection with said rotary actuating, element for actuatingthe 7 same, and said rotary controlling element provided with acoact-ing part for said arresting lever, for the purpose described.

17. In mechanism of the character mentioned, the combination of'acasing, a rotary controlling element and a ratchet-wheel havingoperative connection with eachother located in said casing, a' pawl forsaid ratchetwheel, and an arresting lever and an actuat ing lever forsaid pawl pivoted to said casing and respectively having an arrestingarm and; an actuating armextending outside said casing," and said rotarycontrolling element provided with a coacting part for saidarrestingflever brought into coacting relation-with said arresting leverby theactua tions imparted to said ratchet-wheel by said actuating leverand pawl.

18. In mechanism of the character men--- said casing, said rotarycontrolling element provided with a coacting part for said arrestinglever brought into coacting relation with said arresting lever by theactuations imparted to said ratchet-wheel. by said actuating lever andpawl, and adjacent means having operative connection with said pawl andwith said arresting lever extending outside said oasing for manuallymoving said pawl and arresting lever.

19. In mechanism of the character mentioned, the combination with aframe, and a reciprocating member, ofa casing secured to said frame, arotary controlling element and a ratchet-wheel having operativeconnection with each other located in said casing, apawl for saidratchet-wheel, an arresting lever for said reciprocating member and anactuating lever for said pawl pivoted to said casing and respectivelyhaving an arresting arm and. an actuating arm extending outside saidcasing, said actuating arm normally in the range of movement of saidreciprocating member and actuated thereby, said rotary controllingelement provided with a coacting part for said arresting lever broughtinto coacting relation with said arresting lever by the actuationsimparted to said ratchet-wheel by said actuating lever and pawl, andmeans operatively connected with said pawl extending outside said casingfor manually placing said pawl in inactive relation.

20. In mechanism of the character mentioned, the combination with areciprocating member, and a casing, of a rotary controlling element anda ratchet-wheel having operative connection with each other, a pawl forsaid ratchet-wheel, and an arresting lever and an actuating leverpivoted to said casing and having arms extending outside said casing,one of said arms being an arresting arm for said reciprocating memberand the other of said arms being an actuating arm normally in the rangeof movement of said reciprocating member and actuated thereby, saidrotary controlling element provided with a coacting part for said orresting lever, and said levers being springpressed for normally urgingsaid arresting lever into coaction with said coacting part and normallyurging said actuating lever into said range of movement of saidreciprocating member.

21. In mechanism of the character mentioned, the combination with aframe and a reciprocating IIIQIIIbQIQ Of a casing secured to said frame,a rotary controlling element and a ratchet-wheel having operativeconnection with each other located in said casing, a pawl for saidratchet-wheel, an arresting lever for said reciprocating member and anactuating lever for said pawl pivoted to said casing and respectivelyhaving an arresting arm and an actuating arm extending outside saidcasing, said actuating arm normally in the range of movement of saidreciprocating member and actuated thereby, said rotary controllingelement and said arresting lever provided with coacting arresting partsbrought into coacting relation by the actuations imparted to saidratchetavheel by said actuating lever and pawl, and means operativelyconnected with said pawl and with said arresting lever extending outsidesaid casing for manually placing said pawl and said arresting part ofsaid arresting lever in inactive relations.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

ARISTIDES R. MURRAY.

Witnesses CHARLES E. Vanna, THERESA, M. SILBER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C. 1

